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libstdc++: Fix some tests that fail in C++20 mode

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The linear_congruential_engine negative tests fail with a different
error in C++20 mode, because double is no longer an invalid type for
NTTP. Adjust the expected errors.

libstdc++-v3/ChangeLog:

	* testsuite/26_numerics/random/linear_congruential_engine/requirements/non_uint_neg.cc:
	Adjust expected error for C++20 mode.
	* testsuite/tr1/5_numerical_facilities/random/linear_congruential/requirements/non_uint_neg.cc:
	Likewise.
This commit is contained in:
Jonathan Wakely 2021-04-12 11:45:21 +01:00
parent a694a02125
commit 91dd7954c4
2 changed files with 5 additions and 2 deletions
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4
libstdc++-v3/testsuite/26_numerics/random/linear_congruential_engine/requirements/non_uint_neg.cc
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@ -20,10 +20,12 @@
// { dg-do compile { target c++11 } }
// { dg-require-cstdint "" }
// { dg-error "not a valid type" "" { target { ! c++20 } } 31 }
// { dg-error "from 'int' to 'double'" "" { target c++20 } 31 }
// 26.4.3.1 class template linear_congruential_engine [rand.eng.lcong]
// 26.4.2.2 Concept RandomNumberEngine [rand.concept.eng]
#include <random>
std::linear_congruential_engine<double, 48271, 0, 2147483647> x; // { dg-error "not a valid type" }
std::linear_congruential_engine<double, 48271, 0, 2147483647> x;

3
libstdc++-v3/testsuite/tr1/5_numerical_facilities/random/linear_congruential/requirements/non_uint_neg.cc
View file

@ -19,7 +19,8 @@
// { dg-do compile }
// { dg-options "-D_GLIBCXX_CONCEPT_CHECKS" }
// { dg-error "not a valid type" "" { target *-*-* } 29 }
// { dg-error "not a valid type" "" { target { ! c++20 } } 30 }
// { dg-error "from 'int' to 'double'" "" { target c++20 } 30 }
// 5.1.4.1 class template linear_congruential [tr.rand.eng.lcong]
// 5.1.4.1 [4]